Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
To the Board of Directors and Stockholders
International Stem Cell Corporation and Subsidiaries
Oceanside, California
We hereby consent to the incorporation by reference in the Prospectus constituting a part of the Registration Statements on Form S-8 (Nos. 333-166420, 333-166421, 333-166883, 333-169549, 333-164539, 333-150920, 333-159424 and 333-159421) of our report dated March 23, 2011 of International Stem Cell Corporation and subsidiaries (the Company), a development stage company, relating to the consolidated balance sheets as of December 31, 2010 and 2009, and the related consolidated statements of operations, members’ deficit and stockholders’ equity and cash flows for the years then ended and for the period from inception (August 17, 2001) to December 31, 2010, which report is included in this Annual Report on Form 10-K.
/s/ Vasquez & Company LLP
Los Angeles, California
March 24, 2011
